Shoe heel protector



FIG. 1 is a right side elevational view of the ornamental design for a heel protector showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a heel protector, substantially as shown and described. 